Breda M37 Machine gun, serial #10766, Roma 1940, painted "VIII", no breech block. IN THE 1991 FIREARMS LIST, THIS MG IS DEACTIVATED. The Breda Modello 37 was an Italian heavy machine gun (Mitragliatrice Breda MOD.37) adopted in 1937. It was the standard machine gun for the Royal Italian Army during World War II. The M37 was meant as company/battalion support as compared to the more troublesome M1930 meant for squad/platoon support, and proved far more effective in combat, though possessing some of the same problematic features of Breda 30.